Device Helps Paralyzed Rats Walk Again
Until recently, severe spinal cord injuries came with a fairly definite diagnosis of paralysis, whether partial or complete. But new developments in both stem-cell therapy and electronic stimulation have begun to provide hope, however distant, that paralysis may not be a life sentence. Complicated muscle stimulation devices can enable limited standing and walking, and the first embryonic stem-cell trials began last year. Other techniques, however, may provide an even simpler solution.